Welcome to the CX-3® Flight Computer Operator Resource webpage, where you will find useful information about the CX-3® including the Quick Start Guide, the complete User’s Guide, Waranty details, and more. If you don’t already have the most versatile and easy-to-use aviation flight computer, click the “Buy now!” button below.
Firmware Updates: Devices with firmware versions 1.03, 1.04, 0.15, and 0.18 are the most current and no additional firmware update is needed.
If you have a firmware version not listed please contact support@asa2fly.com, and provide us with the serial number stamped above the battery compartment [SN].
Check out the Online CX-3! Access this electronic version on your desktop, laptop, smartphone or tablet!
This online version of CX-3 cannot be used for FAA knowledge exams.

Features
- Time
- Speed
- Distance
- Headings
- Wind
- Fuel
- Altitude
- Cloud Base
- Standard Atmosphere
- Glide
- Climb and Descent
- Weight and Balance
- Holding Patterns
- Rhumb Line
- and more!
Video
Unwrapping the CX-3 Flight Computer
Solving Time En Route